[Anomalous origin of the right coronary artery from the pulmonary artery. Preoperative diagnostic finding in the aortopulmonary window].

A rare case of the abnormal origin of the right coronary artery is demonstrated in a two-year-old boy with an aortopulmonary window and subvalvular membranous aortal stenosis. The diagnosis was established by angiography before operation by injection of contrast substance into both great arteries. Surgical repair of the complicated defect comprised also derivation of the orifice of the right coronary artery into the aorta. The long-term postoperative follow-up indicates relatively favourable results with signs of impaired myocardial perfusion in the area supplied by the right coronary artery.